Identification and Detailed Characterization of Metal Oxide Powders as a Fundamental Chemical Product
DOI:
https://doi.org/10.18502/kss.v3i18.4768Abstract
Here we propose a method for identification and detailed characterization of metal-oxide powders with patterns of energy-resolved density of electron traps (ERDT) and conduction-band bottom (CBB) position, as a fingerprint, measured by newly developed reversed double-beam photoacoustic spectroscopy (RDB-PAS).
Keywords: Electron Traps, Photoacoustic Spectroscopy, Metal-oxide Powders, Degree of Coincidence
References
Nomenclature of Inorganic Chemistry, IUPAC Recommendations 2005, The Royal Society of Chemistry (2005).
Nomenclature of Organic Chemistry, Sections A, B, C, D, E, F and H, 1979 Edition, Pergamon Press (1979).
Compendium of Polymer Terminology and Nomenclature, IUPAC Recommendations 2008, The Royal Society of Chemistry.
A Guide to IUPAC Nomenclature of Organic Compounds, Recommendations 1993, Blackwell (1993)
S. Ikeda, N. Sugiyama, S.-y. Murakami, H. Kominami, Y. Kera, H. Noguchi, K. Uosaki, T. Torimoto B. Ohtani, Quantitative analysis of defective sites in titanium(IV) oxide photocatalyst powders, Phys. Chem. Chem. Phys., 5 (2003) 778–783.
S. Hasegawa, T. Kawaguchi, Surface properties and photoconductivity of hydrogenreduced titanium(IV) oxide (in Japanese), Nihon Kagaku Zasshi, 92 (1971) 389 392.
U. Kölle, J. Moser, M. Grätzel, Dynamics of interfacial charge-transfer reactions in semiconductor dispersions. Reduction of cobaltoceniumdicarboxylate in colloidal TiO2 , Inorg. Chem., 24 (1985) 2253-2258.
T. Miyagi, T. Ogawa, M. Kamei, Y. Wada, T. Mitsuhashi, A. Yamazaki, E. Ohta, T. Sato, Deep level transient spectroscopy analysis of an anatase epitaxial film grown by metal organic chemical vapor deposition, Jpn. J. Appl. Phys., 40 (2001) L404–L406.
B. Ohtani, Y. Ogawa, S.-i. Nishimoto, Photocatalytic Activity of Amorphous-Anatase Mixture of Titanium(IV) Oxide Particles Suspended in Aqueous Solutions, J. Phys. Chem. B 101 (1997) 3746-3752.
Y. Shiraishi, H. Hirakawa, Y. Togawa, Y. Sugano, S. Ichikawa, T. Hirai, rutile crystallites isolated from Degussa (Evonik) P25 TiO2 : Highly efficient photocatalyst for chemoselective hydrogenation of nitroaromatics, ACS Catal., 3 (2013) 2318–2326.
M. Buchalska, M, Kobielusz, A. Matuszek, M. Pacia, S. Wojtyła, W. Macyk, On oxygen activation at rutile– and anatase–TiO2 , ACS Catal, 5 (2015) 7424–7431.
T. Toyoda, S. Shimamoto, Effects of Bi2O3 Impurities in Ceramic ZnO on Photoacoustic Spectra and Current-Voltage Characteristics, Jpn. J. Appl. Phys. 37 (1998) 2827–2831.
T. Toyoda, H. Kawano, Q. Shen, A. Kotera, M. Ohmori, Characterization of Electronic States of TiO2 Powders by Photoacoustic Spectroscopy, Jpn. J. Appl. Phys. 39 (2000) 3160–3163.
T. Toyoda, I. Tsuboya, Apparent band-gap energies of mixed TiO2 nanocrystals with anatase and rutile structures characterized with photoacoustic spectroscopy, Rev. Sci. Instrum. 74 (2003) 782–784.
N. Murakami, O.-O. Prieto-Mahaney, T. Torimoto, B. Ohtani, Photoacoustic spectroscopic analysis of photoinduced change in absorption of titanium(IV) oxide photocatalyst powders: A novel feasible technique for measurement of defect density, Chem. Phys. Lett. 426 (2006) 204–208.
N. Murakami, R. Abe, O.-O. Prieto-Mahaney, T. Torimoto, B. Ohtani, Photoacoustic spectroscopic estimation of electron mobility in titanium(IV) oxide photocatalysts, Stud. Surf. Sci. Catal. 172 (2007) 429–432.
N. Murakami, O.-O. Prieto-Mahaney, R. Abe, T. Torimoto, B. Ohtani, Double-Beam Photoacoustic Spectroscopic Studies on Transient Absorption of Titanium(IV) Oxide Photocatalyst Powders, J. Phys. Chem. C 111 (2007) 11927–11935.
A. Nitta, M. Takase, M. Takashima, N. Murakami, B. Ohtani, A fingerprint of metaloxide powders: energy-resolved distribution of electron traps, Chem. Commun., 52 (2016) 12096–12099.
A. Nitta, M. Takashima, N. Murakami, M. Takase, B. Ohtani, Reversed double-beam photoacoustic spectroscopy of metal-oxide powders for estimation of their energyresolved distribution of electron traps and electronic-band structure, Electrochim. Acta 264 (2018) 83-90.
L. Kavan, M. Grätzel, S. E. Gilbert, C. Klemenz, J. Scheel, Electrochemical and Photoelectrochemical Investigation of Single-Crystal Anatase, J. Am. Chem. Soc. 118 (1996) 6716–6723.